Adobe After Effects - Keyframes

I am working with After Effects and have reviewed the New Boston tutorials but I don't see anything that addresses what I'm looking for.

Essentially, I have an object's position animated with several keyframes. Now sometimes the object moves fast, sometimes slower.

However I don't want a hard start/stop on the keyframe in between different speeds.

I've tried the easy ease, and that slows down the object to a stop, then slowly starts it up again. That's not what I'm looking for. I don't want the object to stop, I just want a smooth transition from one speed to another.

I've tried Rove Across Time, and that seems to equalize the various speeds across time. I don't want that either. I want to maintain the different speeds, just smooth them out a bit over the transitions from one speed to another.

Also Time Remapping isn't what I'm looking for because I don't want anything to go slow motion or fast motion. Rather it's a single object on the screen that goes several different speeds, and I just want the transition from one speed to another to be smoothed over a bit. Like shifting gears.

.... I totally sympathise as I've just spent days on end going though this .. the tutorial that finally gave me what I needed to know is here: --

I would say that although the animation controls work when you get used to them they are pretty clunky and strangely complex...

I would say that the trick is to get the separate values displayed ( as explained in above tutorial ) but even then I would say the controls are fiddly and not easy to make fine tuned adjustments with ( compared to a Flint / Flame interface ) ....

I've probably still got a few things to learn on this but one of the things that bugs me the most is that when I have the separate values displayed and select the one I want to adjust the rest are still displayed as well -- which can make it very hard to see what happening as the zoom function is pretty clunky also...

....... maybe I've missed something so if anyone knows any details that would assist at this end I would very much appreciate it.